Valve.



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TH: Nonms PETERS co, PNoTo-Llma. wAsHlNaroN, n4 cy Unirse STATES PATENTOFFICE.

SAMUEL B. MOFFITT AND CHARLES O. WEISENBURGER, OF SHARON, PENNSYLVANIA.

VALVE.

SPECIFICATION forming part of Letters Patent-No. 704,654, dated July 15,1902.

Application lod April 24. 1902. Serial No. 104,553. (No model.)

have invented certain new and useful Improvements in Valves; and we dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

The invention relates to valves whose locations subject them to intenseheat; and the object in view is to provide a water-jacket for suchvalves, whereby the high temperature to which they are subjected may belowered and the life of the valve materially prolonged.

Vith this and other objects in view the invention consists in certainfeatures of construction and combination of parts, which will beherenafter fully setforth.

In the accompanying drawings, Figure 1 is a vertical cross-sectionalview on linea: oc, Fig. 2; and Fig. 2 is a longitudinal verticalsectional view on line g/ y of Fig. 1.

The valvecasing comprises concentric shells or castings 1 and 2,preferably cylindrical in form, the former being provided with heads cea and the latter with heads b b; The sides and heads ofthe shells arespaced apart to form water-chambers c, Cl, and e, the iirst two beingbetween the heads of the shells and the last one between the sides ofthe shell. Y

The letters f, g, 7i, and i denote valve-ports communicating with theinterior of the valvecasing, and 3, 4., 5, 6, 7, 8, '9, and 10transverse partitions, which are located between the shells and extendacross the annular water-chamber coextensive with the Width of the saidports and contiguous thereto and haveawater-tight connection with saidshells for obvious reasons.

11, 12, 13, and 14. denote stops or abutmen ts arranged transverselyacross the inner shell of the casing and preferably hollow.

15 denotes the hollow valve-gate, having hollow trunnions 16, journaledin bearings 17, secured in the heads of the casing and adapted to beswung into contact with the stops 12 14 to direct the course of flow offluid through t f and g h or adapted to be swung into engagement withthe stops 11 13 and direct the course of flow through portsfg and portsh fi. One end of the hollow trunnion is connected to a cold-water-inletpipe 18 and the other end to an outlet-pipe 19, which may lead to asewer or other suitable place of discharge. A constant iiow of coldwater through the valve-gate will check the rise in temperature, andthus prevent it becoming burned out.

2O denotes a cold-water-inlet pipe leading into the chamber c at itsupper end.

21 denotes a bent pipe establishing communication between the lower endof the chamber c and the annular chamber e.

22 denotes a pipe communicating with the upper end of the chamber d andhaving branches 23, communicating with the valvecasing at points on theopposite sides ot' the port fand at the end of the casing opposite tothatY at which the cold water is first introduced, and 24 denotes anoutlet or waste pipe leading to a sewer or other suitable place ofdischarge.

The flow of the water through the valve-casing is as follows: From the'pipe 20 into the chamber c, from the lowermost point in the chamber cto the lowermost point in the annular chamber e, thence from the chambere through the branch pipes 23 into the pipe 22, thence from the pipe 22into the upper end of the chamber d, and thence through the lower end ofthe-chamberd through the waste or escape-pipe 24. It will thus be seenthat the entire valve-casing is protected by a waterjacket, whichentirely surrounds thesides and ends thereof, and as the flow of waterthrough this jacket and through the valve-gate is continuous the partswill not be heated to such a temperature as to damage them.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is

A valve-casing,c0l11prising concentric shells spaced apart to form anannular water-chamber and having a series of ports and transversepartitions located between said shells and forming a water-tight jointat the ports and coextensive with tho length ot' the ports,

IOO

heads secured to said shells and spaced apart the same end of theValve-casing, and an esto form water-chambers at the ends of thecape-pipe leading from the lower portion of valve-casing, a pipecommunicating with the the last-named water-chamber, substantially upperportion of the water-chamber at one as set forth.

end of the valve-easing, a pipe communicat- I In testimony whereof Wehave hereunto Set ing with the lower portion of the water-ohamour handsin presence of two subscribing witber at the same end of theValve-casing and nesses.

with the lower portion of the annular Water- SAMUEL B. MOFFITT.

chamber, a pipe communicating with the up- CHARLES O. WEISENBURGER. perportion of the annular water-chamber at Witnesses:

the opposite end of the valve-casing and with J. H. ELLIOTT,

the upper portion of the Water-chamber at W. W. SERVIER.

